Search a number
-
+
281455985046 = 23211573221717
BaseRepresentation
bin1000001100010000001…
…01011000000110010110
3222220111011002110111110
410012020011120012112
514102410213010141
6333144334315450
726222512253655
oct4061005300626
9886434073443
10281455985046
11a9401625405
124666b058b86
1320705ca50b2
14d8a038319c
1574c4695e16
hex4188158196

281455985046 has 16 divisors (see below), whose sum is σ = 562917169584. Its totient is φ = 93817795104.

The previous prime is 281455985029. The next prime is 281455985051. The reversal of 281455985046 is 640589554182.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158580 + ... + 1380296.

It is an arithmetic number, because the mean of its divisors is an integer number (35182323099).

Almost surely, 2281455985046 is an apocalyptic number.

281455985046 is an abundant number, since it is smaller than the sum of its proper divisors (281461184538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

281455985046 is a wasteful number, since it uses less digits than its factorization.

281455985046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433295.

The product of its (nonzero) digits is 13824000, while the sum is 57.

The spelling of 281455985046 in words is "two hundred eighty-one billion, four hundred fifty-five million, nine hundred eighty-five thousand, forty-six".

Divisors: 1 2 3 6 211573 221717 423146 443434 634719 665151 1269438 1330302 46909330841 93818661682 140727992523 281455985046